diff --git a/Q16_reverse_string.c b/Q16_reverse_string.c
index 16834b6..30eb51f 100644
--- a/Q16_reverse_string.c
+++ b/Q16_reverse_string.c
@@ -1,22 +1,11 @@
-#include<stdio.h>
-#include<conio.h>
-void main()
+#include <stdio.h>
+#include <string.h>
+int main()
 {
-    int i, j, k;
-    char str[100];
-    char rev[100];
-    printf("Enter a string:\t");
-    scanf("%s", str);
-    printf("The original string is %s\n", str);
-    for(i = 0; str[i] != '\0'; i++);
-    {
-        k = i-1;
-    }
-    for(j = 0; j <= i-1; j++)
-    {
-        rev[j] = str[k];
-        k--;
-    }
-    printf("The reverse string is %s\n", rev);
-    getch();
+   char s[100];
+   printf("Enter a string\n");
+   gets(s);
+   strrev(s);
+   printf("Reverse string is: %s\n", s);
+   return 0;
 }
diff --git a/check if the number formed by the last digit of each element of an array is divisible by 10 or not b/check if the number formed by the last digit of each element of an array is divisible by 10 or not
new file mode 100644
index 0000000..45eb92a
--- /dev/null
+++ b/check if the number formed by the last digit of each element of an array is divisible by 10 or not	
@@ -0,0 +1,15 @@
+#include <stdio.h>
+int main()
+{
+  int a[100],i,n;
+  printf("enter size of array\n");
+  scanf("%d ", &n);
+  printf("enter array\n");
+  for(i=0;i<n;i++)
+  scanf("%d ", &a[i]);
+  if(a[n-1]%10==0)
+  printf("divisible by 10\n");
+  else
+  printf(" not divisible by 10\n");
+  return 0;
+}